Automatic drink vending machine



Aprll 14, 1936, T, BRADY 2,037,688

AUTOMATIC DRINK VENDING MACHINE Original Filed Sept. 20, 1932 4Sheets-Sheet l @j Y HIM/w? M" Il Hl April 14, 1936D T BRADY 2,037,688

AUTOMATIC DRINK VENDING MACHINE original Filed sept. 2O, 1932 4sheets-sheet 2 INVENTOR.

Za/Wdf M@ @d A TTORNEY April 14, 1936. T. BRADY AUTOMATIC DRINK VENDINGMACHINE Original Filed Sept. 20, 1932 4 Sheets-Sheet 3 T/Wms E A TTORNEY April v14, 1936.

AUTOMATIC DRINK VENDING MACHINE Original Filed Sept. 20, 1932 T. BRADY 4Sheets-Sheet 4 IN V EN TOR.

ATTORNEY lll) Patented Apr. 14, 1936 UNITED STATES PATENT OFFICEOriginal application September 20, 1932, Serial No. 633,942. Divided andthis application April 13, 1935, Serial No. 16,177

5 Claims. (Cl. 225-21) This invention relates, generally, to the vendingof soft drinks; and the invention has reference, more particularly, to anovel coin controlled automatic vending machine for dispensing aplurality of carbonated soft drinks of various avors.

This application is a division of my copending patent application SerialNo. 633,942 filed September 20, 1932, Patent No. 2,000,556, May 7, 1935.Said copending patent application disclosed and claimed a coin operatedcontrolling means for a fluid and cup dispensing structure, whereas thepresent application claims the specific uid dispensing structure withthe circuit closing means included therein broadly.

The principal object of the present invention is to provide a vendingmachine of the character described, including means for supplyingcarbonated water. additional means for supplying syrup, and valve meansfor intermixing the carbonated water and syrup in response to theoperation of suitable circuit closing means, thereby producing acarbonated drink.

Other objects of this invention, not at this time more particularlyenumerated, will be clearly understood from the following detaileddescription oi the same.

The invention is clearly illustrated in the accompanying drawings, inwhich:

Fig. l is a view in front elevation oi the novel automatic drink vendingmachine oi this invention.

Fig. 2 is a plan View of the structure shown in Fig. l.

Fig. 3 is an enlarged fragmentary, part sectional View takensubstantially along line 3-3 o Fig. 2, looking in the direction of thearrows.

Fig. 4 is a fragmentary view taken substantially along line 4--4 of Fig.3 looking in the direction ci the arrows.

Fig. 5 is a fragmentary view taken along line 5-5 of Fig. 3 looking inthe direction o the arrows. I

Fig. 6 is a view similar to Fig. 4 but illustrates the machine inoperation just after a coin has been inserted thereinto.

Fig. 'l is a view looking at the reverse side ci the structure shown inFig. 6 and illustrates the purchaser in the act of removing the filledcup.

Fig. 8 is a wiring diagram illustrating the circuits involved.

Fg. 9 is a schematic sectional view taken subst: tially along line -Sioi Fig. 2.

Fig. l is a fragmentary plan View with parts broken away of the mixingvalve employed in the machine.

Fig. 11 is a fragmentary view in side elevation with parts broken awayof the mixing valve.

Fig. 12 is a fragmentary view in side elevotion of the machine; and

Fig. 13 is a sectional view taken along line i3-I3 of Fig. 6.

Similar characters of reference are employed in all of the abovedescribed views to indicate corresponding parts.

Referring now to the said drawings, the reference-numeral I designatesthe novel automatic drink vending machine of this invention as a whole.This machine comprises a cabinet 2 having front and back walls 3 and ll,side walls 5 and and relatively narrow walls 'l and 8 interconnectingthe front and side walls. Cabinet 2 has a hollow translucent ortransparent advertising device 9 at the top thereof within which ispreferably contained a suitable electile light and on the exterior wallsof which are depicted suitable advertising rnatter il. The front, sideand interconnecting walls of the cabinet 2 are each provided with acompartment door l2, each of which doors is disposed substantiallycentrally oi its respective wall.

Above each door is depicted the name or" a respective drink, therebydesignating the type of drink served through such door, Slightly to theright of each door i2 is provided a coin receiving aperture i3 of a sizeconforming to a particular denomination of coin, for example, a rivecent piece. Further to the right of each door l2 is provided a used cupreceiving aperture ll of a shape adapted to receive a cup when the sameis held in a vertical position. The used cup apertures it aresymmetrically arranged with respect to the doors l2, thereby causing thecabinet i2 to have a neat and attractive appearance. ln the form of theinvention shown in the drawings, the cabinet is illustrated as havingfive cup corr.- partment'doors, adapting the same to serve ve diierentdrinks, but it is to be understood that this cabinet may have a lesseror even greater number of such doors, if desired. Also two cabinets maybe arranged back to back when desired, thereby presenting a handsomeappearance and enabling the sale of ten different carbonated drinks.

Substantially centrally disposed within the lnterior of the cabinet is acasing i (see Fig. 2) containing an electric refrigerator consisting ofa refrigerator unit i6 (see Fig. 9) connected by piping il to thecooling jacket it ci a closed car-A bonated water cooler container it.An expansion valve 2@ is provided in piping ll Where this piping joinsthe cooling jacket |9 so that refrigerant expanding within jacket |9will effect the cooling of the carbonated water 2| contained Withinwater container I8. Carbonated water under pressure is supplied from apressure tank 22, situated in the lower part of cabinet 2, by means ofpiping 23 to container I8, within which container the carbcnated wateris cooled to a relatively low temperature by the refrigerating action ofthe refrigerator unit. Y

Container I8 is provided with outlet piping 24 to the upper end of whichis connected a plurality of branch pipes 25. The branch pipes 25 areadapted to conduct the cooled carbonated water to mixing valves 26, veof which valves are illustrated in the drawings, corresponding to thenumber of differing drinks dispensed by the machine. Valves 43 areincluded in pipes 25 adjacent the respective mixing valves 26 in orderto shut off the supply of `cooled carbonated water to these valves, whendesired. A plurality of removable jars 21 are" contained within theupper part of cabinet 2, which jars are adapted to contain the variousilavors or Syrups dispensed by the machine. Jars 21 are mounted ininverted position with their necks 28 projecting downwardly into hoppers29, which hoppers serve to support the jars and are illustrated ashaving gaskets 30 for sealing the joint between the tops of the jars andthe hoppers. Hoppers 29 are connected by pipes 3| to the mixing valves26. Ihe lower portions of hoppers 29 are illustrated as having valves 32which permit the shutting off of the supply of syrup when desired.

One of the mixing valves 26 is shown in detail in Figs. l0 and 11 andconsists of a casing having a cylindrical valve recess 33 therein,within which is slidably contained a piston 34 that has a piston rod 35extending therefrom. A coil compression spring 36 contained withinrecess 33 bears against the piston 34 and urges the free end of pistonrod 35 against a plunger 31 that is reciprocally mounted within acylindrical recess 38 provided in the casing of valve 26. An annularstop shoulder 39 is provided within valve cylinder 33 for limiting themotion of piston 34 under the action of spring 36. With piston 34abutting stop shoulder 39, the said piston serves to close a port 40 inthe valve casing, which port communicates, by means of a passage 42,with one of the pipes 25 leading to the outlet piping 24.

Acamming lever 44 is pivotally mounted upon a projection 45 formed onthe casing of valve 26, which camming lever has cams 46 formed thereon.One of the cams 46 is adapted, upon the turning of lever 44, downwardly,to affect the inward movement of plunger 31 and piston rod 35, therebycausing piston 34 to compress spring 36 and eiect the opening or port 46so that in use, carbonated water under pressure may iiow from the pipe25 through passage 42, port 4|) and into cylindrical recess 33. Thecylindrical recess 33 is provided with a relatively small aperture 48,which communicates through a short tube 49 to the interior of a smallmixing chamber 5|) formed in the casing of valve 26. Thus, thecarbonated.

water under pressure within cylindrical recess 33 will ow throughaperture 48 and tube 49 into the mixing chamber 5D when plunger 31 isdepressed by the action of camming lever 44.

The casing of valve 26 is also provided With a. second cylindricalrecess 5| which extends parallel to the recess 33. Recess 5| has apiston 34 movable therein which is similar to piston 34.

I'he piston rod 35 of piston 34' is urged against a plunger 31 by theaction of the coil spring 96. With piston 34 in engagement with anannular shoulder 39 under the action of spring 36', the said pistonserves to close a port 52 which communicates, by means of a short tube53, to the interior of the small mixing chamber 50. Pipe 3| leading toone of the jars 21 is adapted to convey syrup into e ,ierture 54 whichcommunicates with the cylindrical recess 5|. When plunger 31' is pressedinwardly by cam 46 of camming lever 44, piston 34 uncovers the port 39so that syrup flowing through pipe 3|, passage 54 and cylindrical recess5|, will enter port 52 and pass through tube 53 into the small mixingchamber to be there intermixed with the pre-cooled carbonated water.VFrom the small mixing chamber 50, the intermixed carbonated water andsyrup will flow into a large tubular mixing chamber 55 which extendsvertically downwardly from valve 26. A spout 56 is attached to the lowerend of mixing chamber 55 and serves toconduct I the intermixed syrup andcarbonated water to a drinking cup as will further appear.

Ihe outer free end of camming lever 44 is plvotally connected to theupper end of a depending link 51 which has its lower end pivotallyconnected, as by a pin 58, to the upper end of an armature 59 lthat isadapted to telescope within a solenoid 60. Armature 59 is normally heldin its upper and withdrawn position with respect to the.

solenoid 60 by means of a coil tension spring 6| which has its lower endconnected to the pin 56 and its upper end connected to a bracket arm 62which is, in turn, carried by a bracket 63 projecting outwardly from therefrigerator casing l5. Since spring 6| normally holds the armature 59in its uppermost position, the link 51 is also held in its uppermostposition, causing camming lever 44 to be held in its upper position, asshown in Fig. 4, in which position the ports 40 andv 52 of valve 26 areclosed.

As especially shown in Figs. 3 to 5, the bracket 63 has a bell cranklever 64 pivotally mounted thereon as by means of a pivotal pin 13. Onearm of bell crank lever 64 depends downwardly and is pivotallyconnected, as by a pivotal screw 65, to the operating arm 66 of a cupdispenser 61. known construction and is thought to require no detaileddescription. The preferably waxed paper cups 66 of the dispenser 61 areconfined in a vertical position, as by vertical rods 69, extendingupwardly from the main portionpf the cup dispenser. actuated, a cup 68will be dropped vertically downwardly from this dispenser and past thedischarge mouth of spout 56. The other arm of bell crank' lever 64 isinclined upwardly somewhat to the horizontal, and has the upper end of adepending tension spring 10 connected to its free end portion. The lowerend of spring 10 is connected to a screw 1| which is threaded into thedepending link 51.

The tension of spring 10 tends to turn bell crank lever 64 in acounterclockwise direction, as viewed in Fig. 5, thereby tending tocause an operating movement of operating arm 66 of the cup dispenser 61.Movement of bell crank lever 64 under the action of tension spring 10 isnormally prevented, however, by a roller stop 12 that is carried by thedepending link 51 and engages the underside of the upwardly inclined armof bell crank lever 64. When depending link 51 is pulled downwardly,however, as when sole- 'I'he cup dispenser 61 is old and of well V Eachtime the operating lever 66 is noid 60 is energized, the roller stop 12will move downwardly as will also pin 1i, so that spring "I will causethe actuation of bell crank lever 64, resulting in the operation of thecup dispenser 61. The cup dispenser 61 thus acts to discharge a cupwhich falls downwardly past the drink discharge mouth of spout 56 andpasses into the hollow interior of a cup embracing bracket 15. The cupthen comes to rest in an upright position with its bottom resting upon atipping platform or pan 14 and with its sides embraced by bracketl 15.

The cup embracing bracket 15 is of C-shape, as viewed in plan, and isopen at the front so that a cup can be readily withdrawn therefrom,although this bracket i serves to maintain the cup in an uprightposition upon the tipping platform or pan 'iii until the user'rernovesthe same therefrom. The cup embracing bracket le is supported at itsrear upon the upper end portion of a strut 1li which extends downwardlyand through an aperture provided in the platform 'it and has a.forwardly directed flange at its lower end which is secured to a beam11.

A substantially vertical panel it is fixed to the rear surface of thestrut l5 and serves as a rear wall for a cup compartment which has oneof the doers i2 at the front thereof. Tipping platform or pan 1d issupported upon the 'lower portion of strut 16, as by means of atransversely extending angle bar which is secured to the under-surfaceof the tipping platform and to the strut 15. The strut thus serves tosupport the tipping platform 'ld upon beam lll. Beam 11 is formed withtransverse extensions @il at its sides, which extensions havedown-turned ears 89' at their ends, which ears are pivotally mountedupon a transversely extending pivotal rod 8|. Pivotal rod 8| has itsends supported by upwardly directed ears 83 formed at the sides of ahorizontal bracket 82 which is attached to the casing I5.

Owing to the pivotal mounting of the beam 11 upon pivotal rod 8| carriedby bracket 82, this beam and the platform 14 are adapted to turnsomewhat about a horizontal axis. The beam 11 is provided with stopscrews 85 and t5 near its ends, which screws, by engaging the bracket82, serve to limit the turning or tipping movement ofthe beam 11 and ofthe platform or pan 14. The beam 'l1 carries an adjustable weight 85which may be nicely adjusted so that the tipping platform 14 willnormally remain in a somewhat forwardly and downwardly inclinedposition, '(see especially Figs. 4 to 6) with the stop screw 85 inengagement with the bracket B2. rIhe weight 86 is so adjusted, however,that when a cup 68, resting upon the tipping platform 14, receives thedesired quantity of drinking uid, the weight of the cup and its contentswill serve to tip the platform 'lili forwardly somewhat by overbalancingthe weight 05, thereby moving the screw 85 into engagement with bracket82, as illustrated in Fig. 7.

The tipping platform or pan itl is provided with flanges at its sidesand with a V-shaped flange 01, which flanges project upwardly from theupper-surface of platform 14 and serve to conduct any liquid spilt uponthis platform to a spout 08 formed in the forward portion thereof. Owingto the inclination of the platform or pan 14, liquid spilt thereon willflow naturally to spent 80 and will be discharged from this spout intothe flared upper end portion of a depending waste pipe 89, which servesto convey such spilt liquid downwardly and into a sump or pan 90positioned at the bottom of the cabinet.

A mercury bulb switch 3| is mounted upon a clip 92 that is secured tothe upper surface of platformld at the rear of panel 18. Mercury bulbswitch Sii is so positioned with respect to the cup platform tl thatwhen this platform is in its normal slightly inclined position, i. e.with the stop screw 85' in engagement with bracket 82, the mercurywithin this bulb switch will engage the terminals of the switch so that,in effect, this switch is closed. A lead 03 is connected to one terminalof mercury bulb switch Si and a second lead 0d is connected to the otherterminal of this mercury bulb switch. Lead @f3 extends to one terminalof the solenoid 6i), the other terminal of which solenoid is connectedby a lead 95 to one lead @ii of a current supply line having a secondlead Si.

A second mercury bulb switch 90 is mounted upon a clip 99 that is alsosecured to the upper surface of platform 'lli at the rear of panel i8.Mercury bulb switch 98 is so positioned with respect to the cup platform1li, that when this platform is in its normal slightly linclinedposition, i. e. with the stop screw 05 in engagement with bracket 82,the mercury within this bulb switch is out of engagement with theterminals of this switch so that, in effect, this switch is open. Whenthe platform is tipped forwardly, however, undcr the weight of a filledcup Gil, the mercury within bulb switch 98 will shift so as to completea circuit across the terminals of this switch, as especially shown inFig. '7, whereas the circuit through bulb switch 9i will be broken,owing to theflowing of the mercury away from the terminals of switch Siwhen the platform tips forwardly.

One terminal of mercury bulb switch 98 is connected by a lead M to thesupply lead Sl. The other terminal of switch e3 is connected by a lead|0| to one terminal of a door operating solenoid |02, the other terminalof which solenoid is connected by a lead 503 to the supply -lead 96. Thecore |05 of door operating solenoid |02 is mounted upon a bracket |04that is xed to the casing i5. An armature Illo` is adapted to telescopewithin the hollow interior of solenoid |02 and extends downwardly fromthis solenoid.

A depending rack |01 is pivotally connected at its upper end, as by apin |08, to the armature |06 and has its lower end portion sli-dablyguided in a slide bearing projection |09 formed en the bracket |04. Adepending circular rod I0 has its upper end secured to the lower end ofrack |01 and the lower end portion of this rod Ilil projects downwardlythrough the top of an air check cylinder il. The lower end of dependingrod ill) has a check piston 'E42 fixed thereto for reciprocation withincheck cylinder lil. The upper and lower portions of check cylinder illare provided with relatively small apertures it and M3 which may be madead- -justable as to size, if desired, in a manner well known to thoseskilled in the art. Aperturcs lf3 and H3 serve to check the movement'ofcheck piston H2 within cylinder iii and hence serve to checkreciprocating movements of rack |01 in use. The teeth of rack i-l' meshwith a gear i |4 that is fixed upon a forwardly extending shaft I5. Therear cnd portion of shaft ||5 is turnably mounted upon a bearingprovided in the bracket |04, whereas the front end portion of this shaftis mounted in a bearing provided vin an extension IIS of the bracket|04.

A sheave ||1 is fixed upon the forward end portion of shaft ||5 and hasa chain ||8 passing thercover. One end of the chain ||8 is fixed to theperiphery of sheave ||1 and the other end of this chain is attached to abracket ||9 that is secured to the upper portion of a cup compartmentdoor |2. The door I2 is adapted to slide upwardly in moving from closedto open position and is guided in its movement by vertical guides |25attached to the inner Wall surface of cabinet 2. Door I2 is preferablytransparent and may be made, for example, of any suitable cellulosicmaterial. A knob or handle |20 is shown attached to the lower centralportion of the door |2, which handle projects outwardly of the cabinet2. A transverse bar, such as an angle bar, extends across the lower rearportion of door |2 and has a horizontal flange |2| projecting rearwardlyof this door, which flange is adapted to cooperate with pivoted latches|22 which are pivotally mounted, as by screws |23, upon upturned earsformed at the two sides of bracket 82.

The latches |22 have enlarged or weighted portions S24 positionedforwardly of the pivotal screws |23 so that these latches are normallyurged by gravity into cooperativerclation with the iiange |2|. Thus, inFig. 6, for example, the enlarged portions |24 of the latches |22 urgethese latches in a counterclockwise direction so that they will engageange |2| and thereby serve to retain the door I2 in closed and lockedcondition. Latches |22 have rearwardly directed releasing projections|26 which are adapted to cooperate with a transversely extending bar |21carried by the forward portion of the cup platform 14. With the door |2in closed position, as shown in Fig. 6, and with the cup platform 14 inits normal position (i. e. with stop screw 85 engaging bracket 82) thelatches |22, by engaging the flange |2|, will serve to lock the door inclosed position, while the releasing projections |26 are positionedimmediately below the under surface of bar |21.

After a cup 68 has been filled with a predetermined quantity of drink,however, causing platform 14 to tip forwardly as shown in Fig. 7, thetransverse bar |21 will act to move the releasing projections |26downwardly, thereby turning latches 22 rearwardly about their pivotalconnections with the bracket 82 and eifecting the unlocking of the door|2. The forward tipping of the platform 14 also completes a circuiithrough mercury bulb switch 98, thereby effecting the energization ofdoor operating solenoid |.2 (see especially Fig. 8) and causing upwardmovement of armature |06, resulting in the turning of gear I4 and sheave||1, to thereby raise door |2 to open position and permitting thepurchaser to insert his hand, as shown in Fig. '1, and remove the filledcup.

The coin control mechanism consists of a depending flattened conveyingtube |29 which extends -downwardly and rearwardly from the coinreceiving aperture |3 (see especially Figs. 3 to '7). The conveying tube|29 has an internal cross section substantially conforming to that ofthe denomination of coin used, i. e. when the coin is viewed edgeways,and this tube serves to convey the coins to the forward end portion ofa. pivoted beam |30. The coins are delivered so that their strike thebeam |30, the faces of the coin exing transversely of the beam as shownin dot dash lines in Fig. 13. Beam |30 is pivotally supportedsubstantially midway of its length as upon a. pivotal pin |3| carried bya bracket |32 that is xed to the casing I5. As especially shown providedwith a slot |33 immediately underlyingl the discharge end of tube |29.`Slot |33 is of slightly lesser Width than the diameter of a genuinecoin intended to be used in the machine, so that fictitious coins ofsmaller diameter than genuine coins will fall through slot |33 and willnot serve to turn the beam |30. A coinv box |40 is provided below theforward end of beam |30 for receiving coins dropped from this beam`.

A .genuine coin will not fall through the slot |33, but the edges ofsuch a coin will strike the beam |30 at the sides of slot |33 and movethe forward end of the same downwardly somewhat until this end of thebeam engages the upper surface of the pivoted armature |34 of a holdingcoil |35. Armature 34 is pivoted' at |39 upon the core frame of holdingcoil |35. A tension spring |49 pulls upon one end of armature |34 andurges the other end thereof upwardly and toward the under surface ofbeam |30. A suitable stop |44 serves to limit the upward turningmovement of armature |34, thereby serving to hol-d this armaturesomewhat spaced from beam |30. The beam |30 is nicely balanced so thatthe weight of a. lgenuine coin will cause this beam to turn about thepivotal pin |3| until the turning motion of the beam is stopped by thesame contacting with the upper end of pivoted armature |34. The beam isstopped in its turning movement by the armature |34 before this beam hasturned sufliciently to completely dislodge the coin from the tube |29,so the beam will come momentarily to rest with the coin still restingthereon. The beam|30 is not engage the terminals of the switch as shownin Figs. 4 and 5.

In use, the tipping of the beam |30, caused by the insertion of theproper coin into-coin aperture I3, causes the mercury in bulb switch |31to engage the terminals of this switch, thereby completing a circuit forholding coil |35. This circuit (see Fig. 8) is from supply lead 91, byWayof lead |4| through switch |31, lead 93, switch 9|, lead 94, lead 42,holding coil |35, lead |43 and lead 95 to supply lead 96. Thus, as soonas a coin strikes the beam |30 causing the same to tip downwardly untilstopped by pivoted armature |34, a circuit is completed for holdingvcoil |35 which immediately acts to draw armature |34 down to the coreof this coil and causing beam |30 to tip still lower and effect thecomplete dislodgment of the coin from tube |29, which coin falls intobox |40, as especially illustrated in Fig. 6. 'I'he beam |30 is shown ashaving an iron piece |46 on the under surface thereof, which piece isattracted by the magnetism of the holding coil so that the beam |30 isheld in its down tilted position shown in Fig. 6 after the coin hasdropped from this beam.

The closing of switch |31 also completes a circuit for the soledoid 60.As especially shown in Fig. 8, this circuit extends from supply lead 91,through lead |4|, switch |31, lead 93, switch 9|,

lead 94, solenoid 6D, lead 95 to supply lead et. The energization ofsolenoid 6|! causes downward movement of armature 59 against the tensionof spring 8|. As armature 59 commences to move downwardly, the link 51also moves downwardly so that the tension of spring 1li causes movementlof bell crank lever 6d and effects an operation of cup dispenser 61,resulting in the discharge of a cup from this dispenser 61, which cupfalls downwardly and is received upon the cup platform 14. Continueddownward movement of armature 59, causes the cams of carnming lever 44to press plungers 3i and 3l' of mixing valve 26 inwardly. This action ofthe camming lever causes intermixed carbonated water and syrup to flowfrom valve 26 downwardly through mixing chamber S5 and through-spout 56into the cup iid.

The mixed drink continues to flow into cup 6B until this cup issubstantially nlled, whereupon the weight of this cup and its contentscauses cup platform 1d to tip forwardly until stop screw 85 engagesbracket 82. The forward tipping of platform it causes the opening ofswitch 9| and eects the deenergization of solenoid 50 as well as thedeenergization of holding coil |35.` Alllie deenergization of solenoid60 permits tension spring Si to immediately return armature 59 to itsupper position, thereby turning camming lever ed upwardly to effect theshutting off of the supply of mixed drink through valve 26. At the sametime, bell crank lever iii-3 is returned to its initial position readyfor another Aoperation of the cup dispenser. The deenergization of theholding coil E35 permitsbeam |30 to swing upwardly into its initialposition, i. e. in abutting relation to the lower end oi coin conveyingtube |29.

The forward tipping of cup platform 14, due

to the weight of the filled cup, also effected the unlatching of latches|22 and likewise caused the closing of switch 98, resulting in theenergization of door operating solenoid |02, which effects the raisingof the door |2 so that the purchaser may insert his hand, as shown inFig. '1, and remove the lled cup 68. When the purchaser removes the cup68, the forward portion of cup platform 14 will turn or tip upwardlyowing to the presence of weight 86, thereby opening switch 98 andreclosing switch 9|. The opening of switch 98 permits the door I2 todescend by gravity, the dash-pot serving to suitably check the downwardmovement of the door.

-When the door has reached its lowermost position, the latches |22 snapover the angle bar |2|, thereby locking the door in closed position andthe appartus is again in condition for another operation. The purchaserwhen through with his cup may insert the same in an upright positionthrough one of the cup apertures lfZ provided in the machine, and suchcup will be conducted downwardly, while still in a vertical position, byavertical guide tube iid (see Figs. 3 and 5). The cup will thus fall inan upright position upon pan 90 and subsequently deposited cups willstack up upon this first cup, thereby forming a compacted mass of usedcups which will require relatively little space within cabinet 2.

Since the machine of this invention is provided with ve independentlyoperating drink dispensing mechanisms, two or more diifering drinks maybe dispensed simultaneously so that a number of persons may have accesssimultaneously to the machine, thereby enabling the machine to have alarge output of the various drinks. Owing to the use of the coolingjacket i9 surrounding the carbonated water reservoir 2l, the drinks aresupplied in a cold condition such as would be obtained from an ordinarysoda fountain. Applicant, by using the cooling jacket i9, alsoeliminates the multiplicity of complicated and expensive cooling coilsas heretofore used in devices of this character.

It will be apparent that the door operating solenoid 02 and associatemechanism may be omitted, if desired, thereby simplifying the machine,in which event each door l2 will be opened by the purchaser graspinghandle 20 and manually raising the door. After removing the iilled cupof beverage, the purchaser will release the door handle, whereupon thedoor will close by gravity and will be locked in` closed position by thelatches i.

As many changes could be made in the above d construction and manyapparently widely diierent embodiments of this invention could be madewithout departing from the scope thereof, as 'defined by the followingclaims, it is intended that all matter contained in the abovedescription or shown in the accompanying drawings shall be interpretedas illustrative and not in a limiting sense.

What is claimed is:

l. 'in a machine of the character described, a mixing valve, acarbonated water supply device communicating with said mixing valve forsupplying cold carbonated water'under pressure to said valve, a syrupcontainer communicating with said mixing valve for supplying syrupthereto, said mixing Valve having a mixing chamber therein, a secondmixing chamber depending from said valve and communicating with said rstmixing chamber, and circuit closing means for causing operation of saidmixing valve, whereby carbonated water and syrup are initiallyintermixed within the mixing chamber of said valve and are furtherintermixed in said second depending mixing chamber.

2. In a machine of the character described, a mixing valve, a carbonatedwater supply device communicating with said mixing valve for supplyingcold carbonated water under pressure to said valve, said carbonatedwater supply device having a jacketed carbonated water reservoir andrefrigerating means for circulating cooling iluid through the jacket ofsaid reservoir, a syrup container communicating with said mixing valvefor supplying syrup thereto, said mixing valve having a mixing chambertherein, and circuit closing means for causing operation of said mixingvalve, whereby carbonated water and syrup are intermixed within themixing chamber of said valve.

3. In' a machine of the character described, a mixing valve, arefrigerated carbonated water supply device communicating with saidmixing valve for supplying cold carbonated Water under pressure to saidvalve, a syrup container` communicating with said mixing valve forsupplying syrup thereto under the action of gravity, said mixing valvehaving a mixing chamber therein, a second mixing chamber depending fromsaid valve and communicating with 'said rst mixing chamber, solenoidactuating means for operating said valve to open position, and circuitclosing means for causing the energization of said solenoid actuatingmeans, whereby cold carbonated water and syrup are initially intermixedwithin the mixing chamber of said valve and are theree after furtherintermixed in said second depending mixing chamber.

4. In a machine of the character described, a mixing valve, arefrigerated carbonated water supply device communicating with saidmixing valve for supplying cold carbonated water under pressure to saidvalve, a. syrup container communicating with said mixing valve forsupplying syrup thereto under the action of gravity, lsaid mixing valvehaving a mixing chamber therein, motive means for operating said mixingvalve, and circuit closing means for causing operation of said motivemeans to eiect the opening of said mixing valve and the admixture ofcarbonated water and syrup in the mixing chamber thereof.

5. In a machine of the character described, a mixing valve, arefrigerated carbonated water supply device communicating with saidmixing valve for supplying cold carbonated water under pressure to saidvalve, a syrup container communicating with said mixing valve forsupplying syrup thereto under the action of gravity, said mixing valvehaving a mixing chamber therein, motive means for operating said mixingvalve, circuit closing means for causing operation of said motive meansto effect the opening of said mixing valve and the admixture ofcarbonated water and syrup in the mixing chamber thereof, means forfurther intermixing the carbonated water and syrup and for deliveringthe resulting drink for use, and circuit opening means responsive to thedelivery of the drink for causing the deenergization of said motivemeans to eiect the closing oi.' said mixing valve.

THOMAS BRADY.

